Beckhoff EL3182 | EtherCAT Terminal, 2-channel analog input, current, 0/4…20 mA

The EL3182 analog input terminal for HART-capable field devices

supplies measuring transducers located in the field and transmits

their analog measuring signals electrically isolated to the

automation device. With a technical measuring range of 107% of

the nominal range, the terminal also supports commissioning with

sensor values in the limit range and the evaluation according to

NAMUR NE43.

The EtherCAT Terminal indicates the signal state by means of light

emitting diodes. Error LEDs signal overload and wire breakage, in

addition to which LEDs provide information about the state of the

HART communication and signal any communication errors.

The HART (Highway Addressable Remote Transducer) protocol

enables two-way communication through digital data transfer via

the analog 0/4…20 mA wiring. In this way, in addition to the analog

current signal, further data can be exchanged with the field device

via the superimposed digital signal.

The HART communication can also be used for the FDT/DTM concept.

The TwinCAT FDT container enables the integration of field device DTMs

into TwinCAT Engineering, so that the device configuration and diagnostic

functions are available directly within the development environment.

As the FDT concept only supports 32-bit, it cannot be used in the 64-bit

TwinCAT XAE Shell.